Re: another cheap electric fan build!
 

BCOWANWHEELS: yes I believe the fan comes on while going down the road, have yet to try it on the highway for a long distance though

72armyswbtruck: im not 100% sure there is enough room for both fans, but try it and let me know. my v-8's in the I-6 mounts so its back farther then most. Also you will be more then fine with the 30amp from painless... mines a 30amp from jegs and i have no problem... i did test a fan on a jeep one day and if i remember right it only drew around 12amps

Re: another cheap electric fan build!
 

Are these used as well?? If new, I definately want one. I was towing yesterday, 95* outside and temp gauge STAYED at 220!!!!!!:whine:

Re: another cheap electric fan build!
 

The recall was for the blades breaking, I don't know how many reported cases it took but you know how recalls are... They'll change the entire fleet just to prevent a lawsuit from someone....

Re: another cheap electric fan build!
 

WOW, outstanding post!

Hope this isn't a dump question but is there a way to run the fan off the temp sensor for the water temp gauge? This way there would not be a need to drill into the head for a switch. I'm a little leery of doing that.

71Rat, maybe you could give us a little info on how to locate the proper area on the head to hit a water jacket, with the head on. And what you used to drill, tap, and keep the debris out.

Thanks :metal:

Re: another cheap electric fan build!
 

he put the sending unit in the existing hole already in the head from the factory

Re: another cheap electric fan build!
 

Does anyone know the cfm rating of this fan?

Re: another cheap electric fan build!
 

:agree: with everything 72armyswbtruck said!:metal: . The only thing I "might" do is drill a small hole in the lower side of the shroud to run the wires thru to conceal them a little more. Thanks again 71Rat for a great post! :metal:

Re: another cheap electric fan build!
 

Thanks for clearing that up, makes it a lot easier.

So can you still use your stock in dash temp guage off the new sending unit for the fan?

Thanks

Re: another cheap electric fan build!
 

thank you everyone, after i did mine i thought about that hole also or trying to figure a way to have the wires go out the front of the shroud to make them less noticable.

71 jimmy: you have a left and right head so worse case is run the stock sending unit in the left head and run the thermo switch in the right head.

Re: another cheap electric fan build!
 

Nice job, I like this fan set up. This could also be used with a spal pwm control and have variable speed control of the fan couldn't it?

Re: another cheap electric fan build!
 

71 Rat,
If I have it you suggest the conventional belt driven and the electric? If I mount the electric forward in the shroud and run the conventional, would I be restricting flow for the mechanical?? I don't believe I would and it might be the best of both worlds. I putt around a lot at slow speeds out in the woods here in Oregon ( my wife loves the wild flowers, birds and wildlife plus the scenery so I take it slow and get her support in what I love to do, plus I am driving the toys!!) City traffic is not realy any concern as I try to stay out of town. Occasionaly a camper might be on the truck towing our 61 Willys CJ-5 behind or the truck might be loaded with a ton and a 1/2 of heavy firewood, like oak.

some think I would be better off with a milder engine than I have built, 383 full roller and 1.6 rockers 2.02 intake valves , Air Gap manifold and a 750 Carter Performer. Headers etc. But what the hey!!!!!:)

:metal: :gi:

Re: another cheap electric fan build!
 

eACH HEAD HAS THE HOLE, OR GO INTO THE INTAKE MANIFOLD WATER JACKET.

Re: another cheap electric fan build!
 

yOU GUYS ARE ALL GREAT!! Inroducing a good do it yourself is very excellent stuff. Turning peeps on to a good deal is also good stuff!! I know the forum has rules against selling on the posts, but I remember a guy getting busted for sending out free samples of a penetrating oil if you payed shipping. he had wanted to turn everyone here onto a good item that we should know aboout and could realy use( we don't want to break things when we take them apart)I sure hope this post doesn't turn that way.
A guy tryiing to make a quick buck doesn't seem to apply here as far as I am concerned by the folk who have offered these fans at bargain prices.
Kinda a sensitive issue with some people it seems. I consider thisa club. If I am at a club meeting, some guy mentions a part or two for an alnmost unbelievable give away price ( considering the cost of shipping now days, ) I feel it a friendly jesture.
However, if an individual jumps in with a product for sale that he is building or marketing and taking advantage of the opportunity as a moment to puash his item, then that is not right . I don't see any of that happening here with the offers;) on the fans.;)

Re: another cheap electric fan build!
 

71RAT, GOTTCHA, thanks for the great upgrade and all the info.

To the rest of the board: Thanks to all who have offered advise AND parts.

Guys and Gals, don't be so sensitive, we are all friends who like the same trucks. Let's enjoy and play nice.

Re: another cheap electric fan build!
 

PRG machine: that is what i was getting at, a mechanical and electrical combination. i dont know if both will fit but if they do thats what "I" would do for what you describe you use your truck for. i drove around for 3 days with my electric fan not hooked up and my mechanical fan still working and on my temp gauge it didnt even show a difference with the electric fan not even moving.

71jimmy: no problem i hope it works out as well for everyone else as it has for me

Re: another cheap electric fan build!
 

Excellent write up!

I have an electric fan on mine right now, but it doesnt move enough air, I was hauling some fence materials yesterday and my temp was over 200, too hot for my new motor.

What year of Jeep is the fans off of?

Thanks

Re: another cheap electric fan build!
 

shopking72: the recall fan was for 2000 (WJ's) grand cherokee's and 2002 (wj's) grand cherokee's I dont know all of the years that had these fans but if you want here is the P/N: CBG4F250

Re: another cheap electric fan build!
 

Looks like a nice cheap mod. I used the Lincoln MK8 fan and it cools the 454 pretty well, this Jeep fan looks like the same blade size. Just curious, anyone running one of these on a BBC yet?

Re: another cheap electric fan build!
 

Looks like a great mod. Does this provide equal or better cooling than the dual fans?

Re: another cheap electric fan build!
 

KEH: I did the Nissan dual fans on my other truck, they work very well, but i think this fan pulls more air then the maxima fans do. either one i would do again this one was just easier i thought. but the dual fans have 2 speed motors to them

Re: another cheap electric fan build!
 

Is this using the part number CBG4F250? I keep getting "no matching part found". I'd like to order one of these, but that number is turning up nothing at every online OEM parts place I'm checking - what am I doing wrong?

Herb

Re: another cheap electric fan build!
 

Just go to that website he listed, register as a new account, enter that part number - it goes into your "shopping cart," then go to the checkout area, with a credit card. Took me 2 minutes or so. Very simple. Freight $$$ amount was not shown, which makes me uneasy, but I selected UPS Ground as shipping method. Got my fingers crossed on the amount for the shipping.

Re: another cheap electric fan build!
 

Thanks - tried it again after registering and still not showing in the parts look-up. I clicked on "home" and logged in (again) and it took me to a different lookup entry. That one seemed to work, so it's ordered.

Odd site mechanics - hope this goes through - LOL

Herb

Re: another cheap electric fan build!
 

For those who are using the Lincoln fan, how did you wire in the two speed motor. I am looking into this option as well. I do not have a shroud and this option would kill two bird with one stone.

Re: another cheap electric fan build!
 

I used the PWM controller on my Lincoln fan. You only hook up the high-speed wire & ground since the controller varies the voltage to the fan.

Re: another cheap electric fan build!
 

Thanks, one more question, is the PWM controller on the fan itself when you bought it, or did you have to buy it seperate. If you bought, what and where did you get it?

Re: another cheap electric fan build!
 

I have been thinking of using the spal pwm controller for this fan.

http://www.spalusa.com/

Re: another cheap electric fan build!
 

I JUST FITTED MY NEW JEEP FAN IN MY SCHROUD. wow it fits perfect..... anybody need the specs where to make the notch in the botton. it will save you a lot of time and aggravation on where to make it " just right " pm me if i can help with specs. and photos.
thanks for the great tip my 250 I 6 needed this bad especially in the winter when no fan is needed. i,am real anxious to do a fuel milage run to compare. bet it get better mpg.........
bob

Re: another cheap electric fan build!
 

well here is an update for everyone, i took the truck on a 3 hour drive non stop 160 miles one way with the fan, most all highway... truck tach.ing out at 3,000-3,500 almost the whole way! I didnt know if the motor could handle it but the temp gauge never went over 180! if anyone knows Rt80 from nj out into pa they know it has a lot of hills and going up those hills and flats the truck stayed nice and cool!!

for everyone that does this swap i hope the fan works as well for you as it has for me

Re: another cheap electric fan build!
 

Finally got around to taking some pics of my setup, wired, working and troublefree.
http://67-72chevytrucks.com/gallery/...670640x480.jpg
http://67-72chevytrucks.com/gallery/...665640x480.jpg
http://67-72chevytrucks.com/gallery/...664640x480.jpg

Re: another cheap electric fan build!
 

This is a really informative thread, and I can't wait to see the additional installed pictures.

For me, the only missing info is what is the normal temp range that these trucks operate at? 185? 200? - they sell both temp ranges. Maybe you have to match it to the thermostat rating, but I dont know.

Also, looking at jegs, you can just buy the temp sensor from if you already have a relay center.

http://www.jegs.com/webapp/wcs/store...0002_758607_-1

I have a bunch of extra 4 and 6 socket automotive relay boxes around here, so I guess Ill put one of them to work and use the other relay positions for headlight mods, and whatever else comes to mind.

Re: another cheap electric fan build!
 

ABLAZN; The PWM controller was separate. I bought mine from DCC controls and am very pleased with it, but their customer service sucked... The SPAL controller seems like a nice product for about the same price.

Re: another cheap electric fan build!
 

That's all very interesting; but how does it do in LA stop-n-go (mostly stop) traffic. Remember the fan isn't providing all the air flow when on the highway, it's getting rammed through the radiator by the vehicle's movement.

Re: another cheap electric fan build!
 

hyarbour: I wouldnt have a second thought of driving my truck through LA now with this fan. I will let my truck idle for hours now if gas wasnt so expensive, also i get stuck in traffic and have yet to have a problem. I know highway speeds air gets rammed through the rad but its also running 3,000-3,500 rpms and with my mechanical even at 2,500 for a while i used to start to get a little hot

Re: another cheap electric fan build!
 

Thanks,

I looked into it some after I posted and found most of the same information. It looks like the SPAL unit has been getting good reviews from the guys that have used it and it is available for about $80 shipped. So, my search for a fan begins.

Re: another cheap electric fan build!
 

Did anyone ever give a definitive answer about using the temp sensor in the intake (for temp guage) instead of the one mounted in the side of the head?

Would this work?

Re: another cheap electric fan build!
 

Called my local dealer and they said that they could not sell me the CBG4F250 fan since it was a replacement for a recall. Could sell it to another dealer but not to an individual.
Anyone else have this problem? Know a way around it?

Re: another cheap electric fan build!
 

Try a different dealer maybe. That or read the previous page, some of the guys are buying them online at www.moparpart.com.

Re: another cheap electric fan build!
 

Yes this will work. Not quite as accurate indication of engine temperature as the head but will still work fine. Just make sure your thermostat matches your fan switch sender.
IE: with a 180* thermostat use a sender with 185* on and 170* off.

Edit:
I reread you post and perhaps your just wanting to know if the intake water jacket will work for the temp gauge. This will work as well.

Re: another cheap electric fan build!
 

i found a thermostatic switch that controls the on ( 195 ) off at (180 )degrees . its a very heavy duty model used in off road equipment. has the correct thread size to screw into the head with no adapters and best of all it requires no relay to handle the 30 amps the fan draws at startup. also comes with wireing diagram and can be used with a manuel over-ride switch for driver controled off & on plus provision for a/c fan control. . if you need one or want pictures email me.
bob
bcowanwheels@aol.com